What is a major division between gravity and the electromagnetic force on one hand and the nuclear forces on the other? 1.Gravity and the electromagnetic force have infinite ranges while the nuclear forces have very small ranges.
2.Gravity and the electromagnetic force act on small objects while the nuclear forces act on large objects.
3.Gravity and the electromagnetic force act on large objects while the nuclear forces act on small objects
4.Gravity and the electromagnetic force have very small ranges while the nuclear forces have infinite ranges

You have two photos of a person walking. one shows the person at the corner of third and main streets, the other shows the person at the corner of tenth and main streets. there are lampposts at every corner in this town, and the first picture shows it to be 10: 32: 00 exactly. the second picture shows it to be 10: 49: 30. you know three facts: (1) all of the clocks are synchronized; (2) there are exactly 12 equal-sized blocks per kilometer in this town; and (3) the streets that cross main in this area are numbered consecutively, with no interruptions. what is the person’s average speed in kilometers per hour?